<template>
    <div>
       <!-- 面包屑导航区 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card class="box-card">
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query"  clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row> 
            <!--用户列表区  -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" >
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px;">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top-start" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page.sync="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total,sizes, prev, pager, next,jumper"
            :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%" @close="addDialogClosed">
            <!-- 内容主体区 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" 
            label-width="70px" >
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
                <el-form-item label="用户名" >
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email" ></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                    <el-input v-model="editForm.mobile" ></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色的对话框 -->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%" @close="setRoleDialogClosed">
           <div>
               <p>当前的用户：{{userInfo.username}}</p>
               <p>当前的角色:{{userInfo.role_name}}</p>
               <p>分配新角色:
                   <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                    v-for="item in rolesList"
                    :key="item.id"
                    :label="item.roleName"
                    :value="item.id">
                    </el-option>
                </el-select>
               </p>
           </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>
<script>
export default{
    data(){
        // 验证邮箱的规则
        var checkEmail =(rule,value,cb) =>{
            // 验证邮箱的正则表达式
            const regEmail= /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号的规则
        var checkMobile =(rule,value,cb) =>{
            // 验证手机号的正则表达式
            const regMobile=/^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
            if(regMobile.test(value)){
                // 合法邮箱
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
       }
        return{
            // 获取用户列表的参数
            queryInfo:{
                query:'',
                // 当前页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            userlist:[],
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible: false,
            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加表单的验证规则对象
            addFormRules:{
                username:[
                    {required: true, message:'请输入用户名', trigger:'blur'},
                    {min: 3, max: 10,message:'用户名的长度在3到10个字符之间', trigger:'blur'}
                ],
                password:[
                    {required: true, message:'请输入密码', trigger:'blur'},
                    {min: 6, max: 15,message:'用户名的长度在6到15个字符之间', trigger:'blur'}
                ],
                email:[
                    {required: true, message:'请输入邮箱', trigger:'blur'},
                    {validator:checkEmail, trigger:'blur'}
                ],
                mobile:[
                    {required: true, message:'请输入手机号', trigger:'blur'},
                    {validator:checkMobile, trigger:'blur'}
                ]
            },
           
            // 控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            // 查询用户信息对象
            editForm:{},
            // 修改表单的验证规则对象
            editFormRules:{
                email: [
                    {required: true, message:'请输入用户邮箱' ,trigger:'blur'},
                    {validator: checkEmail, trigger :'blur'}
                ],
                mobile:[
                    {required: true, message:'请输入手机号' ,trigger:'blue'},
                    {validator:checkMobile, trigger:'blur'}
                ]
            },
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            // 所有角色的数据列表
            rolesList:[],
            // 已选中的角色id值
            selectedRoleId:''
            
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data: res} = await this.$http.get('users',{
                params: this.queryInfo
            })
            if(res.meta.status !=200) {
                return this.$message.error('获取用户列表失败！')
            }
            this.userlist =res.data.users
            this.total=res.data.total
            console.log(res)
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            console.log(newSize)
            this.queryInfo.pagesize= newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage){
            console.log(newPage)
            this.queryInfo.pagenum= newPage
            this.getUserList()
        },
        // 监听switch开关状态的改变
        async userStateChanged(userinfo){
            console.log(userinfo)
        const {data: res} =await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !==200){
                userinfo.mg_state= !userinfo.mg_state
                return this.$message.error('更新用户状态失败！')
            }
            this.$message.success('更新用户状态成功！')

        },
        // 监听用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid) return
                // 可以发起添加用户的网络请求
               const{data:res} = await this.$http.post('users',this.addForm)
               if(res.meta.status !==201) {
                   this.$message.error('添加用户失败！')
               }
                this.$message.success('添加用户成功！')
                //隐藏添加的对话框
                this.addDialogVisible =false
                // 重新获取用户列表数组
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id){
            // console.log(id);
            const{data: res} =await this.$http.get('users/'+ id)
            if(res.meta.status !==200){
                return this.$message.error('查询用户信息失败！')
            }
            this.editForm =res.data
           this.editDialogVisible =true
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                // console.log(valid)
                if(!valid) return
                //发起修改用户信息的数据请求
                const{data: res} =await this.$http.put('users/'+this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
                console.log(res);
                if(res.meta.status !==200){
                    return this.$message.error('更新用户失败！')
                }
                // 关闭对话框
                this.editDialogVisible=false
                // 刷新数据列表
                this.getUserList()
                // 提示修改成功
                this.$message.success('更新用户信息成功')
            })
        },
        // 根据id删除对应的用户信息
        async removeUserById(id){
            // 弹框询问用户是否删除数据
            console.log(id)
           const confirmResult =await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                }
            ).catch(err=>err)
            // 如果用户确认删除，则返回值为字符串confirm
            // 如果用户取消了删除，则返回值为字符串cancel
            // console.log(confirmResult);
            if(confirmResult !=='confirm'){
                return this.$message.info('已取消删除')
            }
            const{data: res} =await this.$http.delete('users/'+id)
            if(res.meta.status !==200){
                return this.$message.error('删除用户失败！')
            }
            this.$message.success('删除用户成功')
            this.getUserList();
            // console.log('确认了删除')
        },
        // 展示分配角色的对话框
       async setRole(userInfo){
            this.userInfo=userInfo
            // 在展示对话框之前，获取所有角色列表
           const{data:res} =await this.$http.get('roles')
               if(res.meta.status !==200){
                   return this.$message.error('获取角色列表失败')
               }
               this.rolesList=res.data

               this.setRoleDialogVisible =true
           
            
        },
        // 点击按钮分配角色
       async saveRoleInfo(){
            if(!this.saveRoleInfo){
                return this.$message.error('请选择要分配的橘色')
            }
            const{data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status !==200){
                return this.$message.error('更新角色失败！')
            }
            this.$message.success('更新角色成功！')
            this.getUserList()
            this.setRoleDialogVisible=false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId= ''
            this.userInfo={}
        }
    }
}
</script>
<style lang="less" scoped>

</style>
